Baked Noodles & Ham

6-8 oz. noodles, cooked and drained
3 Tbsp. butter
3 Tbsp. flour
1 Tbsp. mustard
1 1/2 c. milk
2 c. cooked ham, chopped fine or shredded
1 c. celery, chopped fine
Salt and pepper to taste
Bread crumbs
Dots of butter

Combine three tablespoons butter, flour and mustard in saucepan. Add milk gradually, stirring constantly; cook until thick. Add ham, salt, pepper and celery, then stir in noodles. Pour into greased baking dish. Sprinkle with bread crumbs and dot with butter over whole mixture. Bake at 350° for 30-45 minutes.